Improved Thermal Stability of Graphene-Veiled Noble Metal Nanoarrays as Recyclable SERS Substrates

ACS Applied Materials & Interfaces
Xingang ZhangChangzhong Jiang

Abstract

The ability to enhance the heat resistance of noble metals is vital to many industrial and academic applications. Because of its exceptional thermal properties, graphene was used to enhance the thermal stability of noble metals. Monolayer graphene-covered noble metal triangular nanoarrays (TNAs) showed excellent heat resistance, which could maintain their original triangular nanoarrays at high temperatures, whereas bare noble metal TNAs all agglomerate into spherical nanoparticles. On the basis of this mechanism, we obtained a universal recyclable surface-enhanced Raman scattering (SERS) substrate; after 16 cycles, the SERS substrate still worked well. The improvement of the heat resistance of noble metals by graphene has a great significance to the working reliability and service life of electronic devices and the single-use problem of traditional SERS substrates.

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Citations

Feb 2, 2019·Small·Xingang ZhangXiangheng Xiao
Sep 18, 2020·Bulletin of Environmental Contamination and Toxicology·Mingtao Li, Xiang Zhang
Oct 30, 2020·Optics Express·Wang ZhengkunZhang Jie

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